Direct answer
Signs consume Stamina. If your Stamina level is too low, you can't cast them.
Result
The Quen Sign protects you against damage and certain critical effects.
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Signs consume Stamina. If your Stamina level is too low, you can't cast them.
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Success signal:The Quen Sign protects you against damage and certain critical effects.
Signs consume Stamina. If your Stamina level is too low, you can't cast them.
The Quen Sign protects you against damage and certain critical effects.
Explore the world

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